plate no. 0754
Gabriel Bernard de Rieux
recreation guide
This artwork is a Rococo-era portrait by Maurice Quentin de La Tour, executed in pastel on canvas. La Tour was a French painter who specialized in portrait painting using pastels, achieving fame for subjects such as Voltaire and Madame de Pompadour (Source 2). The medium of pastel, or 'crayon,' is characterized by its opacity and lack of transparency, as the colors contain very little medium and remain in a state of powder (Source 1). Unlike oil or watercolor, pastel relies on mechanical adhesion to the support rather than chemical binding, requiring a surface with a distinct tooth to hold the pigment (Source 5). The work represents the genre of portrait painting, which aims to provide a recognizable likeness of the sitter, serving as a record of their appearance (Source 4).
estimated time
20-30 hours over 5-7 sessions
materials
4 items
steps
5 in sequence
materials
| item | purpose | modern equivalent |
|---|---|---|
| Soft pastels (full set) | Primary medium for applying color in a powdered state. | High-quality soft pastels (e.g., Sennelier, Holbein) |
| Canvas | Support surface. La Tour used canvas for this work, which is less common than paper for pastels. | Linen or cotton canvas |
| Toothed ground/gesso | To create a rough surface that mechanically holds the pastel powder. Source 1 notes that supports must have a rough natural surface or be treated with pumice stone. | Pastel ground or heavy-body gesso mixed with sand/pumice |
| Fixative (optional/historical caution) | Source 1 notes the 'never-ending question of fixing crayons' and that solidity is not uniform. Modern fixatives are used to prevent smudging, though historically problematic. | Workable fixative spray |
preparation
surface prep
The canvas must be prepared with a ground that provides a 'distinct tooth' because pastel colors are in a state of powder and are kept on the support only by mechanical means (Source 1). A smooth surface will cause the color to slip and get no hold (Source 5). The ground should likely be roughened, potentially with a layer of pumice stone or a coarse gesso, to ensure the pigment adheres (Source 1).
underdrawing
La Tour’s specific preparatory methods for this portrait are not explicitly detailed in the provided sources. However, general drawing principles suggest that the artist must select qualities suited to the medium (Source 6). In Rococo portraiture, a light underdrawing in charcoal or pastel would likely be used to establish proportions before applying the opaque layers.
underpainting
Not applicable in the traditional oil sense. Pastel is an opaque medium applied directly. Source 1 classifies crayon as having 'so little medium' that it remains in a state of powder, implying direct application rather than a transparent underpainting layer.
color palette
Flesh tones
Various shades of pink, ochre, and white pastels.
General use in this artist's palette for portraiture.
Dark accents
Deep blues, browns, or blacks.
Defining features and clothing. Note: Darkening by adding black can shift hue toward greenish/bluish, so complementary colors may be preferred for neutralization (Source 7).
Highlights
White or very light tints.
Lighting effects. Lightening by adding white can shift hue toward blue, requiring correction with adjacent colors (Source 7).
composition
The specific compositional layout of Gabriel Bernard de Rieux is not described in the sources. However, as a portrait, it likely follows the conventions of the genre which aims to represent a specific human subject with a recognizable likeness (Source 4). La Tour’s Rococo style typically involves elegant, refined presentation consistent with his other famous subjects (Source 2).
step by step
underdrawing→first pass→refining→finishing→surfaceprep
underdrawing
step 02
Lightly sketch the proportions of the sitter. Use a medium that can be covered by the opaque pastel.
Tip — Select qualities suited to the medium's capacity for expression (Source 6).
Proportional Sketching
first pass
step 03
Apply pastel colors in a powdered state. Since crayons are not transparent, build up opacity directly rather than glazing.
Tip — Remember that crayons contain so little medium they remain in a state of powder (Source 1).
Opaque Layering
refining
step 04
Refine the likeness. Adjust colors carefully; avoid simply adding black to darken, as this can shift hues undesirably. Use complementary colors to neutralize and darken without hue shift.
Tip — Adding black to yellows/oranges/reds can shift them toward green/blue (Source 7).
Color Neutralization
finishing
step 05
Finalize details. Be aware that solidity will not be equal in all parts, and uniform establishment of the image is difficult due to the nature of fixing crayons.
Tip — Do not expect uniform solidity across the entire surface (Source 1).
Mechanical Adhesion Check
surfaceprep
step 01
Prepare the canvas with a ground that has a distinct tooth. Ensure the surface is rough enough to mechanically hold the powdered pigment.
Tip — If the surface is too smooth, the pastel will slip and fail to adhere (Source 5).
Toothed Ground Preparation
critical techniques
Mechanical Adhesion
Pastel relies on the roughness of the support to hold the powder. The artist must ensure the canvas has sufficient tooth.
Opaque Color Mixing
Since crayons are not transparent, colors are mixed on the surface or in the hand, not by glazing. Transparency increases only with more medium, which pastel lacks (Source 1).
Hue Preservation
When darkening or lightening colors, use complementary colors or adjacent colors to correct hue shifts caused by adding black or white (Source 7).
common pitfalls
- →Using a smooth canvas ground, which will cause the pastel to slip and fail to adhere (Source 5).
- →Attempting to achieve transparency in pastel, which is inherently opaque and non-transparent (Source 1).
- →Adding black to warm colors to darken them, which causes undesirable hue shifts toward green or blue (Source 7).
- →Expecting uniform solidity across the painting, as fixing crayons is problematic and solidity varies (Source 1).
what the sources don't tell us
Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.
- ·Specific visual details of Gabriel Bernard de Rieux (clothing, pose, background) are not described in the sources.
- ·La Tour's specific underdrawing technique for this portrait is not documented in the provided texts.
- ·The exact palette of pigments used by La Tour in 1741 is not specified, only general color theory principles.
grounded in
The technical procedure in this guide traces to the following classical art-instruction texts.
The Science of Painting↗
- CHAPTER XII. CRAYONS, DISTEMPERING, EGG-PAINTING, WATER — applied to Understanding the opaque, powdered nature of pastel and the need for a rough support.
The Practice of Oil Painting↗
- MATERIALS — applied to Emphasizing the need for a 'distinct tooth' in the ground for pastel adhesion.
cross-referenced from
Named facts about this artwork and artist were checked against these reference pages.
Wikipedia bio — Maurice Quentin de La Tour↗
- part 1 — applied to Confirming the artist's specialization in pastel portraiture and Rococo style.
Wikipedia: Color theory↗
- part 6 — applied to Guidance on mixing colors without undesirable hue shifts.
Wikipedia: Portrait painting↗
- part 1 — applied to Contextualizing the goal of the portrait as a recognizable likeness.
Read more about the corpus on the sources page and how the guides are built on the methods page.
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